Spring bed-bottom.



F'.-KARR.

SPRING BED BOTTOM.-

APPLICATION FILED NOV. 12. 1914.

1,205,901; Patented Nov. 21, 1916.

- Francr's Kerr FRANCIS KARE, or Hermann, MICHIGAN.

SPBING BED-BOTTOM.

Specification of Letters fzatent.

Patented Nov. 21, 1916.

Application filed November 12, 1914:. $erial No; 871,790.

Toall whom it may concern:

Be 1t known that I, Fna'ncis luau, a citizen of the United States; residing at Holland, in the county of Ottawa and State of Michigan, have invented certain new and useful Improvements in Spring Bed-Bottoms, of which the following is a specification.

My invention relates to improvements in that class of spiral spring bed bottoms that is made up of several spiralswhose surface construction is connected by a series of helical springs in lieu of the ordinary tie rods, and its objects are: First, to provide against the possibility of the upper, or surface coils of the springs turning or slipping in their fastenings. Second, to render the surface construction absolutely flexible and free from uneven ridges. Third, to eliminate the possibility of the connections between the surface coils of the springs sliding or grat ing upon each other and thus producing squeaking sounds as the occupant moves from one position to another. I attain these objects by the peculiar line of construction shown in the accompanying drawing, in

Figure l is a plan of the upper coil of a spring showing therelative positions of the several elements of this bed spring, and the manner of connecting the same. Fig. 2 is an enlarged view of a part of a surface coil showing more distinctly the manner of connecting and securing the helical connectingsprings with the surface coils of the several springs. Fig. 3 an elevation ofa short piece of the surface coilof the spiral spring showing, its connection with the helical springs as seen if looking from the center of the surface coil of the spiral spring.

Similar letters "refer to similar parts throughout the several views.

A represents the surface coil of spiral spring. I I; B represents the continuation of the coil,

andC', C are the helical connecting-springs.

This invention consists of the manner'of connecting these helical connecting-springs with the surface coils of the spiral springs by placing theterminal coils of'the helical counectin -spr1ngs C C against the-outer surface 0 the surface coil of thespiral spring A. 'then carrying the tangentiallyextended end C of ,etfhelical spring over the said surface coil, a d one or more times around the same, as indicated at c 0 1n the several from four given points on the surface coils figures, then through the terminal coil of the next succeeding helical connecting-spring, as indicated in Figs. 1 and 2, and more plainly shown in Fig.3, so this coil Will be firmly clamped between this part of the tangential extension of the preceding helical spring C and the adjacent surface of the spring .A, and the end cof said tangential extension finally securely wound, in a. reversedirection, around the terminal coil A and the beginning of the tangential extension C" of the next helical connecting-spring C. It will be readily understood that by this manner of securing the helical connecting-spring C to the surface coil A of the main spiral spring, that is, with the part C of the helical spring C passing over the surface coil A and the, end of the next preceding helical-connecting; spring C passing through the terminal coi of the. succeeding helical connecting-sprin, C, as shown, the helical connectingsprings are so firmly secured to the surface coils A that it will be impossible for them to move or slip upon the surface coils A to cause any so grating or squeaking or other unpleasant noises as the occupant of a bed moves to. changehis position. k

C. represents the appearance of the term gential ends of the helical connecting springs C before they are interwoven with the surface coil A. of the spiral spring, as indicated at C in the severalviews. i At D I have shown a diagonal helical cone, necting-spring which is connected with the spring A, as at'D', and on to 4,71, practically in the same manner that the tangential ends C of the helical connecting springs U are connected therewith. Then-this dingo nal helical connecting-spring is used, only one can be used in one space between spiral springs, as otherwise the si'irings would cross each other and causedisagreeable grating noises, i i What I claim as new, and desire to secure by Letters Patent of the United States, is: I 1. In combination with the surface fcoil of a spiral spring bed bottom, helical con necting-springs radiating at right angle.

and having tangential extensions, said tan; genti a1 extensions passed around the surface coils and then to and through theterminal coil of the next succeeding helical conneet ing-spring, and then securely connected with the surface coil and the beginning of the tangential extension of the said next/sue ceeding' helical connecting-spring, and diagonal, helical connecting-springs connected with the surface coils in like mannerl 2. In combination with the surface *coils of a spiral spring bed bottom, helical connecting-springs iradiating at right angles from four given points on the surface coils and having tangential extensions, saidtan- In combination with the surface coils of a spiralspring bed bottom, helical connecting-springs having tangential extensions locked to the said surface coils by the tangential extension of each helical connecting; spring being passed over and around the sur' face coil to and through the terminal coil of the next 'succeedinghel i cal connecting-spring, then in the reverse direction Wound tightly around the surface coil and the beginning of the tangential extension of the saidnext succeeding helical connecting-spring, thus locking each helical connectingspring tightly to the surface coil of the spiral spring by means of the tangential extension of the next preceding helical connectingspring, as shown and described.

4. In combination with the surface coils of spiral spring bed bottoms, and with the helical connecting-springs having tangential extensions, the tangential extensions of the said helical connecting-springs placed upon the surface coils,'then carried over and aroundthe same to and through 'theterminal .coils of the next succeeding helical connectingspring and securely connected with the surface coils and the beginning'of the tangential extension of the next succeeding helical connecting-spring, each helical connecting-spring'secm'ed to the surface coil in like manner.

f).- In combination with the surface coil of a spiral spring bed bottom, helical con necting-springs having tangential extensions and radiating from given points on the surhelical connecting-spring passed over and around said. surface coil to and through the tern'iinal coil of the next succeeding helical connecting-spring, and then in a reverse diface coils, the tangentinl extensions of each rection around the surface coil and the bee ginning of the tangential extension of the said succeeding helical connecting-spring, thus locking each he ical connecting-spring firmly. and pos1t1vely to the surface coll by means of the'tangential extension of the- 

